Journal Article

Prospects for discovering supersymmetric long-lived particles with MoEDAL

Santra, A., Felea, D., Mavromatos, N. E., Pinfold, J. L., Mamuzic, J., Masełek, R., Mitsou, V. A., de Austri, R. Ruiz, Vives, O., Sakurai, K.

2020

Overview

We present a study on the possibility of searching for long-lived supersymmetric partners with the MoEDAL experiment at the LHC. MoEDAL is sensitive to highly ionising objects such as magnetic monopoles or massive (meta)stable electrically charged particles. We focus on prospects of directly detecting long-lived sleptons in a phenomenologically realistic model which involves an intermediate neutral long-lived particle in the decay chain. This scenario is not yet excluded by the current data from ATLAS or CMS, and is compatible with astrophysical constraints. Using Monte Carlo simulation, we compare the sensitivities of MoEDAL versus ATLAS in scenarios where MoEDAL could provide discovery reach complementary to ATLAS and CMS, thanks to looser selection criteria combined with the virtual absence of background. It is also interesting to point out that, in such scenarios, in which charged staus are the main long-lived candidates, the relevant mass range for MoEDAL is compatible with a potential role of Supersymmetry in providing an explanation for the anomalous events observed by the ANITA detector.

• Publisher: Springer Berlin Heidelberg,Springer,Springer Nature B.V,SpringerOpen
• Subject: Astronomy / Astrophysics and Cosmology / Charged particles / Charging / Computer simulation / Detectors / Elementary Particles / Hadrons / Heavy Ions / Large Hadron Collider / Magnetic monopoles / Measurement Science and Instrumentation / Monte Carlo method / Monte Carlo simulation / Nuclear Energy / Nuclear Physics / Object recognition / Particle decay / Physics / Physics and Astronomy / Quantum Field Theories / Quantum Field Theory / Regular - Experimental Physics / Regular Article - Experimental Physics / String Theory / Supersymmetry